Question

open box is made up of 3 cm thick is external Length breadth and height of 1.48 M and 1.16 M and 8.3 M find the cost of painting the inner surface at rupees 50 per square metre

Answer 1

area of box=1.48×1.16×8.3
=14.250 m
=14250cm
area to be painted =3×14250
=42750cm2
=42.75m2
total cost=42.75×50
=2137.5